Indoor High Voltage Disconnect Switch

Juhui Power Equipment Co., Ltd. manufactures indoor rotary high-voltage disconnect switches and versions with an earthing blade. Our factory covers 1,500 square meters and has a dedicated research team. We have also completed orders for global brand customers. The Indoor High Voltage Disconnect Switch is model GN30-12 and is a new rotary-blade-type disconnector. It uses a shared base frame for all three phases, with two sets of insulators and contacts arranged on the upper and lower planes. The circuit is opened and closed by rotating the blade. Model GN30-12D adds an earthing blade to the basic version for use in a wider range of power applications. The product has a compact structure and requires little installation space. It provides good insulation performance, while installation and commissioning are straightforward. It complies with GB1985-89 AC High Voltage Disconnectors and Earthing Switches and is used in 10kV, AC 50Hz indoor power systems. It opens and closes circuits under voltage with no load. It can be installed with high-voltage switchgear or used as a standalone unit. The MOQ is 1 unit or 1 set.

The Indoor High Voltage Disconnect Switch is suitable for the specified operating conditions. The applicable altitude is no more than 1,000 meters. The ambient temperature ranges from -10°C to +40°C. The daily average relative humidity is no more than 95%, and the monthly average is no more than 90%. The applicable seismic intensity is no more than 8 degrees. The installation site should be free from heavy dust, chemical corrosion, and explosive media, with no frequent strong vibration. Available models include GN30-12/400-12.5, GN30-12D/400-12.5, GN30-12/630-20, GN30-12D/630-20, GN30-12/1000-31.5, GN30-12D/1000-31.5, GN30-12/1250-31.5, and GN30-12D/1250-31.5. The rated voltage is 12kV for all models. The dynamic stable current is available in 31.5kA, 50kA, and 80kA. The rated insulation level for lightning impulse withstand voltage is 75kV between phase-to-phase and phase-to-ground, and 85kV across the gap. The 1-minute power frequency withstand voltage is 42kV between phase-to-phase and phase-to-ground, and 48kV across the gap. The unit uses a rotary-blade structure and is suitable for indoor power systems. It can be matched with high-voltage switchgear or used independently. It is also suitable for opening and closing circuits under voltage with no load.

The Indoor High Voltage Disconnect Switch uses a rotary-blade structure for straightforward installation and commissioning. During installation, first confirm the cabinet position and operating mechanism direction, then adjust the blade contacts. After commissioning, carry out the required opening and closing tests. The unit can be matched with high-voltage switchgear or used as a standalone unit. Third-party inspection is accepted, and 100% inspection is carried out before packing. The warranty period is one year.

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